[RTTY] Digital Operators Band Plan Committee - Current thoughts and status

[Kai]

Mark,
Just my opinion, and not in any way complete. Painting with a broad brush, and 
using 20 m as an example, the following appear to be basics:

CW to favor the lower portion of the bands, 14.000 to 14.070, (but of course is 
permitted 14.000 to 14.350)
Weak signal digital modes (psk/wsjt) to favor 14.070 to 14.080
High power modes like RTTY to favor    14.070 to 14.150(?)  (except 
14.099-14.101 for beacons)

Modes with BW greater than 500 Hz (like D-STAR data+voice / 6 kHZ BW, and PACTOR 
modes 2.2 kHz) should be above 14.150. If regs do not move PACTOR into the phone 
bands, they should stay above 14.140 kHz.

Be mindful that these are voluntary band plans, and during a contest modes like 
RTTY might spread out below and above the normal recommendations.

73
Kai, KE4PT



On 3/29/2014 1:46 PM, Mark N2QT wrote:
> Has the group been able to put together a bandplan recommendation?  I'm at the point
> in my comments where I am struggling over what to recommend going forward.  Once
> I get past the generalities it gets hard! (And time is running out).
>
> Mark. N2QT
>
>> On Mar 17, 2014, at 1:56 PM, Terry<ab5k at hotmail.com>  wrote:
>>
>> We are slowly getting organized.   We have been flooded with personal emails
>> and phone calls  and appreciate all of the comments and suggestions.   We
>> are certainly open for inputs and right now the feeling is we need to unite
>> and attack this in two ways:
>>
>>
>>
>> 1.       Provide  inputs for the ARRL's Band Plan.  The priority is inputs
>> for the ARRL as that is under a time schedule and we have two weeks
>> remaining
>>
>> 2.       The other avenue is education.   Here are the proposed  pieces:
>>
>> a.       Develop a white paper on both the engineering and deployment flaws
>> of Winlink and other automated digital packet robots.  We have a  two page
>> draft but its need inputs from experts who can make it technically correct
>> and polish it up.
>>
>> b.      Develop a white paper on potential interference from RM-11708 and
>> why it needs to be sandboxed into its own sub band.   This needs development
>> from the ground up.
>>
>> c.       Develop a short white paper documenting the percent of automated
>> packet users versus legacy SSB, CW and RTTY modes.   There was a post to the
>> reflector from a KH6 as I recall that had some numbers.  That needs to be
>> documented with supporting data and published.
>>
>> d.      Develop a Power Point presentation along  the lines of "Spectral
>> Defense - Dangers from Within".     There we talk about the bottom end of 40
>> meters that's shared between CW, RTTY and SSB and talk about the
>> interference to the FT5 DX-Expedition by unattended packet.   Then follow up
>> a view of the spreadsheet shows the "mine field" of unattended packet
>> stations that are there and just waiting to QRM you.   Other slides would
>> discuss the bending of the rules / legality,  Spectrum grab,  IARU concerns
>> about automated robot spectrum grab, a slide from a Emergency Coordinator
>> that rejected Winlink for his two Texas counties due to speed, and the
>> request for 15% of the spectrum band.
>>
>> e.      We also need a 5 minute u-tube video demonstrating Winlink showing
>> that it takes 5 minutes of actual air time to transmit a simple one line
>> message.
>>
>>
>>
>> After the education content is complete, we need help from everyone on this
>> reflector to share the educational information with ARRL officials, other
>> reflectors, clubs and anyone who will listen.    I have requested a slot to
>> do a presentation at the Central Texas DX and Contest Club and also plan do
>> a presentation at the Temple Amateur Radio Club.  I am scheduled for a 30
>> minute talk at HamComm hamfest in Dallas on N1MM Contesting Software and
>> I'll certainly hijack a few minutes out of that talk to discuss the above
>> content and concerns and how folks can help.
>>
>>
>>
>> In the last few days, there has been daily calls with John Stratton - ARRL
>> Vice Director West Gulf Division.   The information is also being passed to
>> our Director.  With the proper content we can start a education program with
>> all league officials expressing all of our  concerns.     We have good data,
>> we have the majority we just need to organize and get the word out.
>>
>>
>>
>> We need volunteers to help on the white papers.   I have someone in mind
>> that not only has superior technical skills but is also  well  respected
>> both at ARRL HQ and across the world.   I sure hope he volunteers.
>>
>>
>>
>> There are a few ideas that we consider nuclear options that are definitely
>> off the table for now.  There are other thoughts and  ideas are coming in
>> that are very useful.    Thanks for all of the inputs.
>>
>>
>>
>>
>>
>> Terry AB5K
>>
>>
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